hi all.... i'm running a 383 sbc in a 3000 lb vega... with me in the car... it has a 5:13 gear ratio with 14x32x15 micky thompson tires .. turbo 350 .. manualy shifted... no trans brake.. eng makes about 450 hp.. i'm running a 4500 stall... 1.6 60 ft... the cam has a power band of 3500 to 7400... i think i need a smaller conv...any help would be GREAT.... thanks caveman